ABB ESB25-22N-06 Building Contactor

ESB25-22N-06

ESB: ABB modular building installation contactor series
25: Rated operational current AC-1/AC-7a of main contacts = 25A
22: Contact configuration: 2 Normally Open (NO) + 2 Normally Closed (NC) (4-pole)
N: Silent AC/DC universal coil (no buzzing sound, built-in overvoltage absorption circuit)
06: Coil control voltage: AC/DC 230～240V

Original manufacturer part number: 1SAE231111R0622

Domestic order number: 10228794

Core Electrical Specifications

2.1 Main Circuit Load Ratings (400VAC/230VAC)

Utilization Category	Rated Current Ie	Single-phase 230V Load Power
AC-1/AC-7a (Resistive: Lighting, Heating)	25A	5.8kW
AC-3/AC-7b (Inductive loads: Motors, Pumps)	NO contacts: 9A / NC contacts: 6A	1.3kW

Rated insulation voltage Ui: 500V

Rated impulse withstand voltage Uimp: 6kV

Maximum main circuit voltage: 400V AC / 220V DC

2.2 Control Coil

Control voltage: AC/DC 230～240V (universal for AC & DC)

Applicable frequency: 50/60/400Hz

Features: Silent operation, low power consumption, built-in surge suppression, no additional varistor required

2.3Mechanical & Electrical Endurance

Mechanical endurance: 1,000,000 operations

Electrical endurance for AC-1 resistive loads: 130,000 operations

Electrical endurance for AC-3 motor loads: 500,000 operations

Mechanical Dimensions & Installation

Mounting method: Snap-on mounting on standard 35mm DIN rail

Module width: 2 modules (36mm)

Overall dimensions: W36mm × H85mm × D65mm

Net weight: 0.245kg

Protection class: IP20 (for indoor cabinet use only)

Termination: Screw terminals, tool-free auxiliary contact expansion interface

Product Features
Silent Coil: Universal for AC and DC, suitable for noise-sensitive areas such as machine rooms, dormitories and hotels
Integrated Overvoltage Protection: Built-in absorption circuit on coil to suppress switching surges
Wide Load Compatibility: Supports lighting, floor heating, fans, water pumps and small single-phase motors simultaneously
Compact Modular Design: 2-module width to save cabinet space
Equipped with 2NO and 2NC contacts, enabling synchronous control of two switch-on circuits and two switch-off circuits for flexible circuit design
Typical Application Scenarios

Commercial buildings: Public lighting, central air conditioning fans, floor heating modules

Hotels & apartments: Automatic control of room lighting, fresh air systems and water pumps

Machine & electrical rooms: Thermostatic equipment, load switching in power distribution cabinets

Light industrial applications: Switching of resistive loads ≤25A and single-phase motors ≤1.3kW

Optional Matching Accessories
Auxiliary contact modules: EH04-11N (1NO+1NC), EH04-20N (2NO)
Spacing heat dissipation baffles: ESB-DIS (for multiple units installed side-by-side in high-temperature environments)
End cover plates: ESB-PLK24, ESB-SPK24
Reference Alternative Models in the Same Series

24V AC/DC coil: ESB25-22N-01

4NO with 230V coil: ESB25-40N-06

4NC with 230V coil: ESB25-04N-06

Complete Model List of ABB ESB Silent Building Contactors

Model Coding Rule (ESBXX-XXN-XX)
ESB: Silent AC/DC universal building contactor (built-in surge suppression, buzz-free)
First two XX digits: Rated AC-1 current rating: 16/20/25/40/63/100A
Middle two XX digits: Main contact configuration (first = NO, second = NC)

11=1NO+1NC, 20=2NO, 02=2NC, 22=2NO+2NC, 40=4NO, 04=4NC

N: Silent coil identifier
Last two digits: Coil voltage code (2 commonly used versions in domestic market)

01: AC/DC 24V

06: AC/DC 230~240V (mainstream for civil use; your model ESB25-22N-06 adopts this voltage)

07: AC/DC 400~415V (for industrial three-phase control)

Basic Specifications by Current Rating

Model Prefix	Rated AC-1 Current	Module Width	Applicable Loads
ESB16	16A	1 module (18mm)	Small lighting, small electrical appliances
ESB20	20A	1 module (18mm)	General lighting, fans
ESB25	25A	2 modules (36mm)	Floor heating, water pumps, single-phase motors
ESB40	40A	3 modules (54mm)	High-power heating, three-phase lighting
ESB63	63A	3 modules (54mm)	Commercial central air conditioning, high-power loads
ESB100	100A	6 modules (108mm)	Main control for large buildings, heavy three-phase loads

Full Model List by Current Rating (Domestic common 01/06 voltage, including industrial 07 version)

3.1 ESB16 (16A, 1 module)

Contact configurations: 11, 20, 02

ESB16-11N-01 / ESB16-11N-06 / ESB16-11N-07

ESB16-20N-01 / ESB16-20N-06 / ESB16-20N-07

ESB16-02N-01 / ESB16-02N-06 / ESB16-02N-07

3.2 ESB20 (20A, 1 module)

Contact configurations: 11, 20, 02

ESB20-11N-01 / ESB20-11N-06 / ESB20-11N-07

ESB20-20N-01 / ESB20-20N-06 / ESB20-20N-07

ESB20-02N-01 / ESB20-02N-06 / ESB20-02N-07

3.3 ESB25 (25A, 2 modules, your model belongs to this series)

Contact configurations: 20, 02, 22, 40, 04

ESB25-20N-01 / ESB25-20N-06 / ESB25-20N-07

ESB25-02N-01 / ESB25-02N-06 / ESB25-02N-07

ESB25-22N-01 / ESB25-22N-06 / ESB25-22N-07 (your model ESB25-22N-06)

ESB25-40N-01 / ESB25-40N-06 / ESB25-40N-07

ESB25-04N-01 / ESB25-04N-06 / ESB25-04N-07

3.4 ESB40 (40A, 3 modules)

Contact configurations: 40, 04, 22

ESB40-40N-01 / ESB40-40N-06 / ESB40-40N-07

ESB40-04N-01 / ESB40-04N-06 / ESB40-04N-07

ESB40-22N-01 / ESB40-22N-06 / ESB40-22N-07

3.5 ESB63 (63A, 3 modules)

Contact configurations: 40, 04

ESB63-40N-01 / ESB63-40N-06 / ESB63-40N-07

ESB63-04N-01 / ESB63-04N-06 / ESB63-04N-07

3.6 ESB100 (100A, 6 modules)

Contact configuration: 40

ESB100-40N-01 / ESB100-40N-06 / ESB100-40N-07

Manual Operation Version EN Series (Optional, with manual toggle lever)

Same coding rule as ESB, prefixed with EN, e.g. EN20-22N-06, EN25-40N-06, for on-site manual switching and commissioning.

Matching Accessory Part Numbers
Auxiliary contact modules: EH04-11N (1NO+1NC), EH04-20N (2NO)
Side-by-side heat dissipation baffles: ESB-DIS
End cover plates: ESB-PLK24 (for 1/2-module models), ESB-PLK40/63 (for 3/6-module models)
Side sealing plates: ESB-SPK24, ESB-SPK40/63
Cross Reference of Common Domestic Order Numbers (06 version with 230V coil)

ESB16-22N-06: 1SBE111111R0622

ESB20-22N-06: 1SBE121111R0622

ESB25-22N-06: 1SAE231111R0622 (Order No.: 10228794)

ESB25-40N-06: 1SAE231111R0640 (Order No.: 10228796)

ESB40-40N-06: 1SAE341111R0640

ESB63-40N-06: 1SAE351111R0640

Official Mechanical Endurance Parameters of ABB ESB25-22N-06

Mechanical Durability: 1,000,000 operations

Reference Supporting Electrical Endurance (Original Manufacturer Data for Same Model)

Resistive loads AC-1 / AC-7a (Lighting, Heating)

Normally Open (NO) contacts: 130,000 operations

Normally Closed (NC) contacts: 50,000 operations

Motor loads AC-3 / AC-7b (Fans, Water Pumps)

Normally Open (NO) contacts: 500,000 operations

Normally Closed (NC) contacts: 340,000 operations

Supplementary Notes

All models in ESB25 series (ESB25-20/02/22/40/04N-01/06/07) share a unified mechanical endurance of 1,000,000 operations, unaffected by contact configuration or coil voltage.
Mechanical endurance refers to pure mechanical actuation cycles with no load, only coil pull-in and drop-out; electrical endurance means the effective service life of contacts under rated load switching.
Ambient operating temperature range: -25℃ ~ +55℃. Temperatures exceeding 55℃ will shorten electrical endurance, while mechanical endurance is barely affected by minor temperature fluctuations.

Translation Specification Note

Industrial electrical standard terms comply with IEC international norms (NO/Nc, AC-1/AC-3, DIN rail, Ie, Ui, Uimp etc.)
Brand, model, part numbers, order codes remain unchanged as original characters
Tables, hierarchical titles, lists fully retain original document structure for engineering use
Unit expressions follow international engineering writing habits (A, V, kW, mm, kg)